/**
 * Copyright 2008-2009 HAN.BIFANG
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package han.bifang.business.sec.access;


/**
 * @Author Kent
 */
public class AuthenticatorFactory {
	private static String authClass;
	private static Authenticator provider;

	public static void setAuthenticatorClass(String className) {
		authClass = className;
	}

	public static Authenticator getAuthenticator() {

		if (provider == null) {
			if (authClass == null)
				authClass = "han.bifang.business.sec.access.db.DbAuthenticator";
			try {
				provider = (Authenticator) Class.forName(authClass)
						.newInstance();
			} catch (Exception e) {
				// TODO: handle exception
			}
			
		}
		return provider;
	}
}
